27273216413 has 2 divisors, whose sum is σ = 27273216414. Its totient is φ = 27273216412.

The previous prime is 27273216401. The next prime is 27273216457. The reversal of 27273216413 is 31461237272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27000405124 + 272811289 = 164318^2 + 16517^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27273216413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27273216473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13636608206 + 13636608207.

It is an arithmetic number, because the mean of its divisors is an integer number (13636608207).

Almost surely, 2^27273216413 is an apocalyptic number.

It is an amenable number.

27273216413 is a deficient number, since it is larger than the sum of its proper divisors (1).

27273216413 is an equidigital number, since it uses as much as digits as its factorization.

27273216413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 38.

The spelling of 27273216413 in words is "twenty-seven billion, two hundred seventy-three million, two hundred sixteen thousand, four hundred thirteen".